mblchi scott



diffu 13125 lgrt-tent @frn Letters Patent No. 74,679, dated February 18,1868.

IMPROVEMENT III PLoUGII- MOIILRROARDs i @tige clgml referat tu in ttenEaters man rmt mating ,aan mf tige nina.y

TO ALL WHOM IT MAY CONCERN; I

Be it known that we, RICHARD GAmns andV MRLOHI SCOTT, of Fairfield, inthe county of Jeeson, and State of Iowa, have invented new andusefnliinproyements in Plough-Mould Boards, and we do hereby declarethat 'the following is a. full and exact `description thereof, referencebeing had to theV accompanying drawings, 'making part oi'.- thisspecification. y

The nature of our inventiomconsists in combining metal and glass,'forproducing a plough-mould board, in the manner as will vbe hereinafterfully explained..

A metallic 'mould-board, A, made of suitableV thickness, is provided allalong its edges-with a V-shaped groove, a a, on its concave side, andalso with metallic studs orvbuttons, B B, on the same side, and oftheshape as represented in the drawing, said groove and studs being madefor the purpose of rmly securing the glass4 to I the mould-board, whentheV same Vis uniformly applied toor cast over that concave side of themould-board in iis molten state. On the back or convex side of the ironmoilld-board'we make several protuberances `or knobs,

C C, provided with screw-thread inside, for .the purpose of admittingthe ends of the screwswith which the mould-board may he secured totheplough; l

Being aware that the plough-mould boards made entirely of glass havebeen claimed by others, What we claim as our invention, and desire tosecure by Letters Patent, is4 A 1. The met/allie plough-mould board A,provided WithvV-shaped groove along the edges, and studs or buttons B Bon its concave s'rfalce, in combination with glass cast over saidsurface in its molten state, substantially as herein set forth andspecied.

2 The protuberances or knobsA C C, arranged as described, forthe'purpose of securing the mould-board to the plough, substantially asset forth, in combination with the ahovedescribed mould-board.

. RICHARD GAINES,

MELCHI SCOTT.

Witnesses:

DAVID HnRoN, J. N.- RoRINsoN.

